JP4742065B2 - Closure device for vehicle opening / closing body - Google Patents

Description

  The present invention relates to an opening / closing for a vehicle in which an opening / closing body such as a sliding door, a swing door, a back door, or a trunk lid of a vehicle is closed by a driving means from a slightly open position to a fully closed position, which is a so-called half door state. The present invention relates to a body closure device.

When the openable / closable opening / closing body provided on the vehicle body closes to a predetermined slightly open position, the latch in the locking device provided on the open / close body engages with the striker on the vehicle body side located at the advanced position, When the latch engagement / disengagement detection sensor detects this, the drive means provided on the vehicle body moves the striker to the retracted position, moves the open / close body to the fully closed position, and the latch engagement / disengagement detection sensor detects that the latch is the striker. A closure device for a vehicle opening / closing body in which a striker is moved to an advanced position by driving means by detecting that it has left the vehicle is known (see, for example, Patent Document 1).
Japanese Patent No. 3738340

  However, in the one described in Patent Document 1, when the trunk lid, which is an opening / closing body, is suddenly closed to the slightly open position, the latch in the locking device of the trunk lid is located on the vehicle body side positioned at the advanced position. There is a possibility that the latch or the striker may be damaged due to the impact with the striker.

  For this reason, in this type of conventional closure device, the striker, the latch, etc. in the lock device are made of a strong material so as to withstand the impact as described above, so that the material cost is high. In addition, problems such as an increase in weight and hindering weight reduction of the vehicle have arisen.

  In view of the above-mentioned problems of the prior art, the present invention can reduce the impact on the striker and the like when the opening / closing body is rapidly closed, so that the striker and the like can be made of an inexpensive material. An object of the present invention is to provide a closure device for an opening / closing body for a vehicle that can maintain sufficient durability even if it is simply formed.

According to the present invention, the above problem is solved as follows.
(1) A striker is provided on either one of a facing portion of the vehicle body and an opening / closing body provided on the vehicle body so as to be freely openable / closable, so that the striker can be moved between an advanced position and a retracted position. A locking device having a latch that can be engaged with and disengaged from the striker, and a latch engagement / disengagement detection sensor that detects that the latch is engaged and disengaged from the striker. When the latch engagement / disengagement detection sensor detects that the latch is engaged with the striker, the drive means moves the striker to the retracted position, moves the open / close body to the fully closed position, and When the latch engagement / disengagement detection sensor detects that the latch is detached from the striker, the drive means moves the striker to the advanced position. In the vehicular opening / closing body closure device, the closing speed detection sensor for detecting the closing speed of the opening / closing body, and the closing speed detection sensor detects the speed higher than a predetermined closing speed, thereby And a safety control means for operating the means and moving the striker located at the advanced position to the retracted position.

(2) In the above item (1), the closing speed detection sensor is a rotary encoder that detects the rotational angular speed of the pivot that rotates integrally with the opening and closing body.

According to the present invention, the following effects can be achieved.
According to the first aspect of the present invention, when the opening / closing body is suddenly closed at a speed larger than a predetermined closing speed, the closing speed detecting sensor detects this, and the safety control means is operated to be positioned at the advanced position. Since the striker is immediately moved to the retracted position by the driving means, the latch of the locking device is engaged with the striker located at the retracted position.

In order for the latch to engage with the striker located in the retracted position, the opening / closing body must reach the almost fully closed position, and in that case, the opening / closing body is to improve the sealing performance when closed. Since the inertia energy and the closing speed when the opening / closing body is closed are significantly attenuated, the latch can be engaged with the striker without giving a large impact.
In other words, the impact when the opening / closing body is suddenly closed is absorbed by the elastic seal member, and the impact applied to the striker and the latch is alleviated.
Therefore, even if the striker or the like is simply formed of an inexpensive material, sufficient durability can be maintained.

  According to invention of Claim 2, the structure of a closing speed detection sensor can be simplified and it can manufacture at low cost.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a rear portion of a vehicle including an embodiment in which the present invention is applied to a closure device for a trunk lid of a vehicle.
A trunk room 2 is formed in the rear part of the vehicle body 1 of the vehicle, and a trunk lid 3 as an opening / closing body is attached to the opening from the upper surface to the rear surface so as to be opened and closed.

  The trunk lid 3 is pivotally attached to the vehicle body 1 with pivot shafts 5 and 5 pointing in the left-right direction at the front end portions of a pair of left and right hinge pieces 4 and 4 fixed to both sides of the lower surface of the front end portion. From the fully open position shown to the fully closed position (not shown) which completely obstruct | occludes the opening of the trunk room 2, it can rotate centering on the pivots 5 and 5. FIG.

  In the vicinity of one pivot 5 in the vehicle body, there is provided a rotary encoder 6 that detects the rotational angular velocity of the pivot 5 that is integrated with the trunk lid 3 and is rotated with respect to the vehicle body 1. A closing speed detection sensor for the trunk lid 3 is provided.

  A lock base 8 of the lock device 7 is fixed to the center of the rear lower end of the trunk lid 3 so that a part of the lock base 8 protrudes downward, and the striker enters the center of the lower end of the lock base 8. A groove 9 is provided.

  As shown in FIGS. 2 and 3, a latch 10 is pivotally attached to a lock base 8 in the lock device 7 with a shaft 11 facing in the front-rear direction. The latch 10 is shown by a solid line in FIG. Rotating about the shaft 11 is possible between an engagement position that engages with the striker 12 to be described later and a disengagement position that is disengaged from the striker 12, as indicated by an imaginary line.

The lock base 8 includes a limit switch 13 that detects that the latch 10 has reached the engagement position by slidingly contacting the outer peripheral edge of the latch 10, and a limit that detects that the latch 10 has reached the disengagement position. A latch engagement / disengagement detection sensor 15 comprising a switch 14 is provided.
The latch engagement / disengagement detection sensor 15 may be composed of only one limit switch.

  Other structures in the lock device 7 may be the same as those in the conventional trunk clock device, and are not directly related to the present invention, and thus detailed description thereof is omitted.

  An opening 16 that allows the lock base 8 to enter is provided in a portion of the front face of the rear end of the vehicle body 1 that faces the locking device 7 of the trunk lid 3. Is provided with striker driving means 17 as shown in FIGS. 2 and 3, which is substantially the same as that described in Patent Document 1.

  The striker driving means 17 is formed such that the striker 12 is bent upward in the middle portion, and one end portion is pivotally attached to the vehicle body 1 with a shaft 18 facing in the front-rear direction below one side portion of the opening 16 and the other end portion. In addition, a striker base 20 facing in the left-right direction in which a long hole 19 facing substantially in the left-right direction is formed, and attached to the vehicle body 1 and rotated only in one direction (may be forward / reverse rotatable). A motor 21 as means, a cam plate 22 fixed to the rotating shaft 21a of the motor 21, and a pin 23 protruding from an eccentric portion of the cam plate 22 and fitted in the elongated hole 19 of the striker base 20. And a limit switch 24 that is in sliding contact with the outer peripheral surface of the cam plate 22 and detects the position of the cam plate 22.

  In the striker driving means 17, the pin 23 is located above the rotating shaft 21a of the motor 21, and the striker 12 is located at an advanced position that is substantially level with the opening 16, as shown in FIG. Therefore, when the rotating shaft 21a, the cam plate 22 and the pin 23 are integrally rotated by approximately 180 degrees, the pin 23 is positioned below the rotating shaft 21a of the motor 21, as shown in FIG. The striker base 20 is rotated downward about the shaft 18, and the striker 12 is positioned at a retracted position slightly lower than the advanced position. From this state, the rotating shaft 21a and the cam plate 22 When the pin 23 is integrated with the pin 23 and further rotated approximately 180 degrees in the same direction, the striker 12 is rotated back to the original advanced position shown in FIG. Each time a is rotated 180 degrees, the striker 12 between the retracted and the advanced position position, so as to repeat the descent and rise sequentially alternately.

  One half of the cam plate 22 forms a circular arc portion 22a having a semicircular arc shape centering on the rotation shaft 21a of the motor 21, and the other half portion forms a depressed portion 22b whose radius gradually decreases from the circular arc portion 22a. As shown in FIG. 2, when the pin 23 is at the top dead center, the portion that contacts the limit switch 24 is the top dead center detector 22c, as shown in FIG. As described above, when the pin 23 is at the bottom dead center, the portion that contacts the limit switch 24 forms the bottom dead center detector 22d.

Next, based on the block diagram of FIG. 4 and the flowchart of FIG. 5, the configuration of the control circuit and its operation in this embodiment will be described.
As shown in FIG. 4, the main control device 25 includes safety control means 26 inside. Actually, the main control device 25 is formed by a CPU, and the safety control means 26 is formed integrally therewith.

  Limit switches 13 and 14, a limit switch 24, and a rotary encoder 6 constituting the latch engagement / disengagement detection sensor 15 are connected to the input side of the main controller 25, and a motor 21 is connected to the output side.

The main controller 25 controls the output-side motor 21 in the following manner by the operation of these input-side electric elements.
The safety control means 26 compares the rotational angular velocity Vx detected by the rotary encoder 6 as a closing speed detection sensor with the set speed Vo stored in advance in the safety control means 26, and the rotational angular speed Vx is set as the set speed. By detecting that it is larger than Vo, the motor 21 is operated, and the striker 12 located at the advanced position is moved to the retracted position.

  As shown in the flowchart of FIG. 5, first, in step (S1), it is determined by the limit switch 24 whether the striker 12 is in the advanced position or the retracted position. That is, when the limit switch 24 is stopped immediately after being changed from OFF to ON (the state shown in FIG. 2), if the striker 12 is in the advanced position, the limit switch 24 is changed from ON to OFF. When the striker 12 is stopped immediately after the change (the state shown in FIG. 3), it is determined that the striker 12 is in the retracted position.

  In step (S1), after it is determined that the striker 12 is in the advanced position, the trunk lid 3 is suddenly moved while the striker 12 is in the advanced position (step (S1)) as shown in FIG. If the rotational angular velocity Vx of the pivot 5 detected by the rotary encoder 6 at that time is greater than the set velocity Vo preset in the safety control means 26 (step (S2)), the step (S3 ), The motor 21 is operated, the striker 12 is pulled down to the retracted position, and when it is detected that the striker 12 has reached the retracted position (step (S4)), the operation of the motor 21 is stopped. (Step (S5)).

After it is determined in step (S1) that the striker 12 is in the advanced position, the trunk lid 3 is closed with the striker 12 in the advanced position (step (S1)) as shown in FIG. If the rotational angular velocity Vx of the pivot 5 detected by the rotary encoder 6 at that time is smaller than the preset velocity Vo preset in the safety control means 26 (step (S2)), the step (S10 ), The latch 10 is engaged with the striker 12 in the advanced position, and is closed to a slightly open position, which is a so-called half-door state. In step (S10), the latch 10 is engaged with the striker 12 and engaged. When the position is reached, the limit switch 13 is activated.
Then, the motor 21 is actuated (step (S3)), the rotating shaft 21a, the cam plate 22 and the pin 23 are integrally rotated in the direction of the arrow in FIG. The striker 12 is moved to the bottom dead center, and the striker 12 is moved from the advanced position to the retracted position. By moving the striker 12 from the advanced position to the retracted position at this time, the trunk lid 3 is strongly closed from the slightly open position to the fully closed position where it is difficult to close manually by the resistance force of the seal member (not shown). It is.

  When it is detected that the striker 12 has reached the retracted position by changing the limit switch 24 from ON to OFF (step (S4)), the operation of the motor 21 is stopped (step (S5)).

  In step (S1), after the limit switch 24 is changed from ON to OFF and it is determined that the striker 12 is not in the advanced position but in the retracted position, the trunk is unlocked from inside or outside the vehicle. When the latch 10 is released from the striker 12 by the latch release operation and reaches the release position and the limit switch 14 is operated (step (S6)), the motor 21 is operated (step (S7)), and the rotation is performed. The shaft 21a, the cam plate 22, and the pin 23 are integrally rotated in the direction of the arrow in FIG. 3, the pin 23 is moved from the bottom dead center to the top dead center, and the striker 12 advances from the retracted position. It is moved to the position to prepare for the next closing operation of the trunk lid 3.

  When it is detected that the striker 12 has reached the advanced position by changing the limit switch 24 from OFF to ON (step (S8)), the operation of the motor 21 is stopped (step (S9)).

As described above, the following specific actions occur in the present invention.
That is, as shown in FIG. 2, when the trunk lid 3 is suddenly closed while the striker 12 is in the advanced position, the rotary encoder 6 detects the movement and the limit for detecting the rotation position of the latch 10. Regardless of the switch state of the switch 13 or 14, the motor 21 is operated and the striker 12 is quickly moved to the retracted position.

  Therefore, when the trunk lid 3 is suddenly closed, the striker 12 is pulled down from the advanced position to the retracted position before the latch 10 is engaged with the striker 12, so that the latch 10 of the locking device 7 is positioned at the retracted position. The striker 12 is engaged.

  In order for the latch 10 to engage with the striker 12 located in the retracted position, the trunk lid 3 must reach almost the fully closed position, in which case the trunk lid 3 is sealed when closed. Since the inertia energy and the closing speed when the trunk lid 3 is closed are significantly attenuated by abutting against an elastic seal member (not shown) for enhancing the performance, the latch 10 is engaged with the striker 12 without giving a large impact. Can be combined.

In other words, the impact when the trunk lid 3 is suddenly closed is absorbed by the elastic seal member, and the impact on the striker 12 and the latch 10 is alleviated.
Therefore, even if the striker 12 and the like are simply formed of an inexpensive material, sufficient durability can be maintained.

Although one embodiment of the present invention has been described above, the present invention can be modified and changed as follows without departing from the scope of the claims.
(I) The lock device 7 is provided on the vehicle body 1 side, and the striker 12 and the striker driving means 17 are provided on the opening / closing body side of the trunk lid 3 or the like.
(Ii) The structure of the striker driving means 17 is of another type.

  In the above embodiment, the opening / closing body is the trunk lid 3 and the present invention is applied to the closure device. However, the present invention is, for example, a vehicle sliding door, swing door, back door, etc. The present invention can also be applied to a closure device.

It is a schematic perspective view of the rear part of a vehicle provided with one embodiment of the present invention. FIG. 5 is an enlarged longitudinal front view of a rear portion of a vehicle and a portion facing a trunk lid when the trunk lid is located at a slightly open position. FIG. 3 is an enlarged vertical front view of the same part as in FIG. 2 when the trunk lid is in a fully closed position. It is a block diagram which shows a control circuit structure. It is a flowchart which shows the effect | action of one Embodiment of this invention.

Explanation of symbols

1 Car body 2 Trunk room 3 Trunk lid (opening / closing body)
4 Hinge piece 5 Axis 6 Rotary encoder (closing speed detection sensor)
7 Locking device 8 Lock base 9 Striker entrance groove 10 Latch 11 Shaft 12 Striker 13 and 14 Limit switch 15 Latch engagement / disengagement detection sensor 16 Opening 17 Striker drive means 18 Shaft 19 Long hole 20 Striker base 21 Motor (drive means)
21a Rotating shaft 22 Cam plate 22a Arc portion 22b Depressed portion 22c Top dead center detecting portion 22d Bottom dead center detecting portion 23 Pin 24 Limit switch 25 Main controller 26 Safety control means

Claims (2)

A striker is provided at one of the opposing parts of the vehicle body and an opening / closing body that can be opened and closed on the vehicle body, so that the striker can be moved between the advanced position and the retracted position, and the striker is moved between the advanced position and the retracted position. Provided with a driving means for providing a locking device including a latch that can be engaged with and disengaged from the striker, and a latch engagement / disengagement detection sensor for detecting that the latch is engaged and disengaged from the striker, When the latch engagement / disengagement detection sensor detects that the latch is engaged with the striker, the drive means moves the striker to the retracted position, moves the opening / closing body to the fully closed position, and disengages the latch. When the detection sensor detects that the latch is released from the striker, the drive means moves the striker to the advanced position. In the closure device of a closure for a vehicle which is adapted,
The closing speed detection sensor for detecting the closing speed of the opening and closing body, and the closing speed detection sensor detects a speed greater than a predetermined closing speed, thereby operating the driving means to be positioned at the advanced position. A closure device for an opening / closing body for a vehicle, comprising safety control means for moving the striker to a retracted position.   2. The closure device for a vehicle opening / closing body according to claim 1, wherein the closing speed detection sensor is a rotary encoder that detects a rotational angular velocity of a pivot that rotates integrally with the opening / closing body.

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